US4424189A - Process for sterilizing tub-shaped containers - Google Patents

Process for sterilizing tub-shaped containers Download PDF

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Publication number
US4424189A
US4424189A US06/391,246 US39124682A US4424189A US 4424189 A US4424189 A US 4424189A US 39124682 A US39124682 A US 39124682A US 4424189 A US4424189 A US 4424189A
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US
United States
Prior art keywords
container
sterilizing agent
heating element
high temperature
internal surfaces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/391,246
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English (en)
Inventor
Werner Hick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HICK & CO HIDDENHAUSEN WEST GERMANY A CORP OF GmbH
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Hick and Co GmbH
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Assigned to HICK & CO GMBH HIDDENHAUSEN WEST GERMANY A CORP OF reassignment HICK & CO GMBH HIDDENHAUSEN WEST GERMANY A CORP OF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: HICK, WERNER
Application granted granted Critical
Publication of US4424189A publication Critical patent/US4424189A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02—Sterilising, e.g. of complete packages
    • B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/10—Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
    • A61L2/16—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using chemical substances
    • A61L2/20—Gaseous substances, e.g. vapours

Definitions

  • the present invention relates to sterilization and particularly to the destruction of micro-organisms in containers. More specifically, this invention is directed to cleansing apparatus and especially to apparatus for use in the sterilization of open-topped containers. Accordingly, the general objects of the present invention are to provide novel and improved methods and apparatus of such character.
  • the present invention is particularly well suited for use as a sterilizing process for killing micro-organisms in containers which are intended to receive food-stuffs.
  • Known processes for sterilizing containers in which food stuffs are to be packaged include UV irradiation, treatment with a mixture of steam and air and the so-called wet aseptic technique in which the interior wall of the container is sprayed with a hydrogen peroxide mixture and subsequently dried.
  • peroxide to be a particularly reliable sterilizing agent for killing micro-organisms and containers subjected to the wet aseptic technique may accordingly be used when a long shelf life is required.
  • the germicidal action of peroxide depends upon the formation free oxygen, the free oxygen being formed during thermal decomposition and exhibiting a particularly strong sterilizing effect at the moment of formation.
  • the efficiency of a wet aspetic process is also attributable to the liquid hydrogen peroxide which penetrates the cell coatings of the micro-organisms.
  • peroxide is a toxic substance, it is necessary to remove substantially all residues of peroxide from containers treated by a wet aseptic process.
  • the removal of the peroxide is achieved by evaporation and thus a wet aseptic process requires, subsequent to the spraying step, a heating step.
  • the combined spraying and heating steps do not result in absolute sterilization of the entire internal surface of a treated container.
  • the present invention overcomes the above-discussed and other deficiencies and disdvantages of the prior art by providing a reliable wet aseptic process for sterilization of the entire internal surface of a container in a single step operation.
  • a sterilizing agent preferably a hydrogen peroxide mixture
  • a sterilizing agent is vaporized either within the container to be sterilized or immediately in front of the container to provide free oxygen in the container, the vapor condensing on the wall of the container as a film.
  • the vaporization of the sterilizing agent is caused to occur in a substantially instantaneous manner and the condensate wets the entire internal surface of the container being sterilized.
  • the present invention is a one-step procedure in that it is unnecessary to perform any treatment steps particularly an evaporation step, to remove residues of hydrogen peroxide from the container.
  • the present invention also encompasses apparatus for use in the practice of the above-described novel process.
  • FIG. 1 is a schematic, cross-sectional side elevation view of apparatus in accordance with a first embodiment of the invention.
  • FIG. 2 is a schematic, cross-sectional side elevation view of apparatus in accordance with a second embodiment of the invention.
  • a conveyor for transporting tubs 1 which are to be sterilized is indicated at 2.
  • the conveyor 2 is provided with plural recesses 2a in which the tubs 1, which for example may be intended to be filled with dairy products, are supported by the lip flanges provided on the tubs.
  • a vertically movable support 3 is positioned above conveyor 2 and supports a plurality of spray nozzles 4, the nozzles 4 being positioned so as to be centered with respect to the conveyor recesses 2a.
  • Each of nozzles 4 is connected, via a conduit 4a, to a source of compressed air and, by a conduit 4b, to a reservoir which contains a mixture of hydrogen peroxide or other suitable sterilizing agent.
  • caps 5 which are mounted on and hermetically sealed to the nozzles 4 as indicated at 5a.
  • caps 5 are provided with peripheral flanges which are urged tightly against the lip flanges of the tubs by the descending motion of the support 3.
  • the discharge ends of the nozzles 4 project into the chambers defined in part by the caps 5.
  • a heating coil 6 is supported from and extends below each of the nozzles 4.
  • the tubs to be sterilized are of frutoconical shape and thus the heating coils 6 are in the shape of truncated cones which project into the tubs so as to be spaced a predetermined distance from the base and wall thereof.
  • the coils 6 are connected to a source of electric current.
  • the support member 3 and thus the nozzles 4 and heating coils 6, are movable vertically with respect to conveyor 2, this movement being indicated by the double headed arrow.
  • the rate of vertical movement of the support 3 is synchronized with the advance of the rows of tubs whereby the heating coils are lowered briefly into previously untreated tubs, the tops of the tubs are sealed by the caps 5 and the sterilization treatment is performed.
  • the spray nozzles are actuated and extremely fine droplets of a hydrogen peroxide mixture are sprayed into the tubs.
  • the spray impinges on the heating coils, which have a surface temperature of approximately 500° C., whereupon the liquid undergoes an immediate transition to the gas phase.
  • the free oxygen thus produced has a potent germicidal action and the vapor subsequently precipitates as a condensate film on the internal wall of the tub whereby an absolutely reliable germicidal effect is achieved.
  • the hydrogen peroxide mixture employed consisted of a 35% concentration of hydrogen peroxide.
  • FIG. 2 An alternative technique in accordance with the invention is depicted in FIG. 2.
  • apparatus for use in the practice of this alternative technique employs a heating coil 8 which is positioned entirely within the cap 5, the sterilizing agent being sprayed into the chamber defined by the cap.
  • the cap is preferably provided with a covering of a suitable insulating material as shown.
  • the cap 5 is provided with a bottom plate 9 provided with one or a plurality of apertures 9a, the apertures serving the purpose of increasing the flow velocity of the vaporized sterilizing agent to the container to thereby achieve an optimum distribution of the vapor.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Inorganic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
US06/391,246 1981-06-27 1982-06-23 Process for sterilizing tub-shaped containers Expired - Fee Related US4424189A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813125430 DE3125430A1 (de) 1981-06-27 1981-06-27 Verfahren und vorrichtung zum sterilisieren von becherfoermigen behaeltern

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US06/507,924 Division US4537749A (en) 1981-06-27 1983-06-27 Process and device for sterilizing tub-shaped containers

Publications (1)

Publication Number Publication Date
US4424189A true US4424189A (en) 1984-01-03

Family

ID=6135574

Family Applications (2)

Application Number Title Priority Date Filing Date
US06/391,246 Expired - Fee Related US4424189A (en) 1981-06-27 1982-06-23 Process for sterilizing tub-shaped containers
US06/507,924 Expired - Fee Related US4537749A (en) 1981-06-27 1983-06-27 Process and device for sterilizing tub-shaped containers

Family Applications After (1)

Application Number Title Priority Date Filing Date
US06/507,924 Expired - Fee Related US4537749A (en) 1981-06-27 1983-06-27 Process and device for sterilizing tub-shaped containers

Country Status (4)

Country Link
US (2) US4424189A (de)
EP (1) EP0069228B1 (de)
JP (1) JPS5811625A (de)
DE (2) DE3125430A1 (de)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511538A (en) * 1981-12-17 1985-04-16 Robert Bosch Gmbh Apparatus for sterilizing packaging containers
US4512935A (en) * 1983-01-25 1985-04-23 Tetra Pak International Ab Apparatus for the volatilization of a liquid
US4595560A (en) * 1983-07-16 1986-06-17 Robert Bosch Gmbh Method for sterilizing packaging material and/or packaging apparatus
US4680163A (en) * 1984-04-14 1987-07-14 Kolbus Gmbh & Co. Kg Process and apparatus for sterilizing containers
US4744951A (en) * 1983-11-07 1988-05-17 American Sterilizer Company Vaporization method to enhance sterilant penetration
US4797255A (en) * 1986-03-24 1989-01-10 Snow Brand Milk Products Co., Ltd. Sterilization method and apparatus therefor
US4896478A (en) * 1985-11-13 1990-01-30 Pkl Verpackungssysteme Gmbh Method and apparatus for sterilizing packaging material, in particular packaging containers
US4900527A (en) * 1986-12-24 1990-02-13 Kolbus Gmbh & Co. Kg Appliance for sterilizing containers
US4943414A (en) * 1987-07-30 1990-07-24 Johnson & Johnson Medical, Inc. Method for vapor sterilizaton of articles having lumens
US5007232A (en) * 1989-11-20 1991-04-16 Abbott Laboratories Apparatus and method of use of sterilizing containers using hydrogen peroxide vapor
US5053196A (en) * 1988-07-26 1991-10-01 Snow Brand Milk Products Co., Ltd. Method for container conveyance in germ-free filling/packaging system
US5068087A (en) * 1988-12-30 1991-11-26 American Sterilizer Company High capacity multicomponent liquid vaporizer
FR2682049A1 (fr) * 1991-10-02 1993-04-09 Remy Equipement Dispositif propulseur de melange air-vapeur de peroxyde d'hydrogene.
WO1993021965A1 (en) * 1992-05-06 1993-11-11 Despatch Industries Limited Partnership Barrier isolation system
US5303325A (en) * 1992-10-13 1994-04-12 Abbott Laboratories Air heater
WO2000028552A1 (en) * 1998-11-09 2000-05-18 Clean Earth Technologies, Llc Method and apparatus for photosensitized ultraviolet decontamination of surfaces and aerosol clouds
US6406666B1 (en) 2001-02-20 2002-06-18 Tetra Laval Holdings & Finance, Sa Method and apparatus for vaporizing sterilant hydrogen peroxide
WO2003030950A1 (en) * 2001-10-05 2003-04-17 Pepsico, Inc. High-speed, low-temperature sterilization and sanitization apparatus and method
US6692694B1 (en) 1998-11-09 2004-02-17 Clean Earth Technologies, Llc Method and apparatus for photosensitized ultraviolet decontamination of surfaces and aerosol clouds
US20080226497A1 (en) * 2005-09-12 2008-09-18 Solvay Sa Aqueous Solution Suitable for the Chemical Sterilization of Packaging Materials, Process for Its Preparation and Its Use

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE894957A (fr) * 1981-11-14 1983-03-01 Jagenberg Ag Procede et dispositif pour la sterilisation d'un materiel, d'emballage, en particulier, de recipients d'emballage
JPH01182228A (ja) * 1988-01-06 1989-07-20 Toppan Printing Co Ltd 容器の殺菌方法
IT1225214B (it) * 1988-11-25 1990-11-02 El Srl Dispositivo per la sterilizzazione dell'imboccatura di contenitori, inparticolare di contenitori a forma di sacco per prodotti alimentari
DK162141C (da) * 1989-04-14 1992-03-02 Accu Air As Fremgangsmaade til desinfektion af et eller flere lokaler samt anlaeg til udoevelse af fremgangsmaaden
JPH046027A (ja) * 1990-04-16 1992-01-10 Kuwabara Yasunaga 金属製容器部材の殺菌方法及び無菌充填装置
SE507994C2 (sv) * 1996-10-14 1998-08-10 Tetra Laval Holdings & Finance Sätt att sterilisera förpackningsmaterial
DE19704639C2 (de) * 1997-02-07 2000-11-02 Tetra Laval Holdings & Finance Verfahren zum Verdampfen und Überhitzen eines Sterilisierungsmittels und Vorrichtung hierfür
DE10019047A1 (de) * 2000-04-18 2001-10-25 Tetra Laval Holdings & Finance Vorrichtung zum Sterilisieren von Packungen
DE10145818C1 (de) * 2001-09-17 2002-10-10 Alfill Engineering Gmbh & Co K Sterilisiervorrichtung mit H202-Verdampfer
DE10346843B4 (de) * 2002-12-03 2018-03-01 Robert Bosch Gmbh Vorrichtung zum Vergasen eines Dekontaminationsmittels
DE102007001970A1 (de) * 2007-01-13 2008-07-17 Khs Ag Verfahren und Vorrichtung zur Sterilisation von Behältern aus Metall
DE102007056833A1 (de) * 2007-11-26 2009-05-28 Gea Tds Gmbh Verfahren und Vorrichtung zum Erzeugen eines sterilisierenden Gasgemischs
US8741228B2 (en) 2011-09-23 2014-06-03 American Sterilizer Company Hydrogen peroxide vaporizer with heated diffuser
US9211354B2 (en) 2011-09-28 2015-12-15 American Sterilizer Company Bulkhead assembly for VHP unit with removable diffuser
JP6144935B2 (ja) 2013-03-18 2017-06-07 三菱重工メカトロシステムズ株式会社 容器の殺菌装置
DE102016105780B3 (de) * 2016-03-30 2017-04-27 Hamba Filltec Gmbh & Co. Kg Vorrichtung zum Abfüllen von flüssigen Lebensmitteln
US11930985B2 (en) * 2020-07-01 2024-03-19 Kitchen Robotics Ltd Apparatus and method for washing and sanitizing cookware by robotic or manual operation
WO2023052153A1 (en) * 2021-09-29 2023-04-06 Alvar Mist Ehf Apparatus for disinfection of closed spaces

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014750A (en) 1932-02-10 1935-09-17 Corp Of Seitz Werke G M B H Apparatus for sterilizing containers
US3421840A (en) 1962-02-10 1969-01-14 Strunck & Co Mas Fab H Process and apparatus for treating ampoules and similar containers
US3723060A (en) 1968-02-26 1973-03-27 Ex Cell O Corp Aseptic packaging machine
US4296068A (en) 1979-02-19 1981-10-20 Dai Nippon Insatsu Kabushiki Kaisha Apparatus for sterilizing a succession of food containers or the like

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB880404A (en) * 1958-12-22 1961-10-18 Charles Wilhelm Pfefferkorn Improvements in apparatus for disinfecting buildings
SE7513420L (sv) * 1975-11-28 1977-05-29 Ziristor Ab Sett och anordning for sterilisering av forpackningsmaterial
US4169123A (en) * 1975-12-11 1979-09-25 Moore-Perk Corporation Hydrogen peroxide vapor sterilization method
WO1979001074A1 (en) * 1978-05-16 1979-12-13 Ex Cell O Corp Method and means for applying bactericide to container for sterilization
NZ191968A (en) * 1978-11-27 1982-03-16 F Allen Bottle sterilizing device wet steam sterilization

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014750A (en) 1932-02-10 1935-09-17 Corp Of Seitz Werke G M B H Apparatus for sterilizing containers
US3421840A (en) 1962-02-10 1969-01-14 Strunck & Co Mas Fab H Process and apparatus for treating ampoules and similar containers
US3723060A (en) 1968-02-26 1973-03-27 Ex Cell O Corp Aseptic packaging machine
US4296068A (en) 1979-02-19 1981-10-20 Dai Nippon Insatsu Kabushiki Kaisha Apparatus for sterilizing a succession of food containers or the like

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511538A (en) * 1981-12-17 1985-04-16 Robert Bosch Gmbh Apparatus for sterilizing packaging containers
US4512935A (en) * 1983-01-25 1985-04-23 Tetra Pak International Ab Apparatus for the volatilization of a liquid
US4595560A (en) * 1983-07-16 1986-06-17 Robert Bosch Gmbh Method for sterilizing packaging material and/or packaging apparatus
US4744951A (en) * 1983-11-07 1988-05-17 American Sterilizer Company Vaporization method to enhance sterilant penetration
US4680163A (en) * 1984-04-14 1987-07-14 Kolbus Gmbh & Co. Kg Process and apparatus for sterilizing containers
US4896478A (en) * 1985-11-13 1990-01-30 Pkl Verpackungssysteme Gmbh Method and apparatus for sterilizing packaging material, in particular packaging containers
US4797255A (en) * 1986-03-24 1989-01-10 Snow Brand Milk Products Co., Ltd. Sterilization method and apparatus therefor
US4900527A (en) * 1986-12-24 1990-02-13 Kolbus Gmbh & Co. Kg Appliance for sterilizing containers
US4943414A (en) * 1987-07-30 1990-07-24 Johnson & Johnson Medical, Inc. Method for vapor sterilizaton of articles having lumens
US5053196A (en) * 1988-07-26 1991-10-01 Snow Brand Milk Products Co., Ltd. Method for container conveyance in germ-free filling/packaging system
US5068087A (en) * 1988-12-30 1991-11-26 American Sterilizer Company High capacity multicomponent liquid vaporizer
US5007232A (en) * 1989-11-20 1991-04-16 Abbott Laboratories Apparatus and method of use of sterilizing containers using hydrogen peroxide vapor
FR2682049A1 (fr) * 1991-10-02 1993-04-09 Remy Equipement Dispositif propulseur de melange air-vapeur de peroxyde d'hydrogene.
US5525295A (en) * 1992-05-06 1996-06-11 Despatch Industries Limited Partnership Barrier isolation system
WO1993021965A1 (en) * 1992-05-06 1993-11-11 Despatch Industries Limited Partnership Barrier isolation system
US5303325A (en) * 1992-10-13 1994-04-12 Abbott Laboratories Air heater
WO2000028552A1 (en) * 1998-11-09 2000-05-18 Clean Earth Technologies, Llc Method and apparatus for photosensitized ultraviolet decontamination of surfaces and aerosol clouds
US6692694B1 (en) 1998-11-09 2004-02-17 Clean Earth Technologies, Llc Method and apparatus for photosensitized ultraviolet decontamination of surfaces and aerosol clouds
US20040170526A1 (en) * 1998-11-09 2004-09-02 Curry Randy Dale Method and apparatus for photosensitized ultraviolet decontamination of surfaces and aerosol clouds
US20040219057A1 (en) * 1998-11-09 2004-11-04 Jeffry Golden Method and apparatus for photosensitized ultraviolet decontamination of surfaces and aerosol clouds
US7569181B2 (en) 1998-11-09 2009-08-04 Clean Earth Technologies, Llc Method and apparatus for photosensitized ultraviolet decontamination of surfaces and aerosol clouds
US8142715B2 (en) 1998-11-09 2012-03-27 Biomed Protect, Llc Method and apparatus for photosensitized ultraviolet decontamination of surfaces and aerosol clouds
US6406666B1 (en) 2001-02-20 2002-06-18 Tetra Laval Holdings & Finance, Sa Method and apparatus for vaporizing sterilant hydrogen peroxide
WO2003030950A1 (en) * 2001-10-05 2003-04-17 Pepsico, Inc. High-speed, low-temperature sterilization and sanitization apparatus and method
US6752959B2 (en) 2001-10-05 2004-06-22 Pepsico, Inc. High-speed, low temperature sterilization and sanitization apparatus and method
US20080226497A1 (en) * 2005-09-12 2008-09-18 Solvay Sa Aqueous Solution Suitable for the Chemical Sterilization of Packaging Materials, Process for Its Preparation and Its Use
US7776261B2 (en) * 2005-09-12 2010-08-17 Solvay (Societe Anonyme) Aqueous solution for the chemical sterilization of packaging materials, process for its preparation and its use
AU2006290748B2 (en) * 2005-09-12 2012-03-29 Solvay (Societe Anonyme) Aqueous solution suitable for the chemical sterilization of packaging materials, process for its preparation and its use

Also Published As

Publication number Publication date
DE3273131D1 (en) 1986-10-16
EP0069228A2 (de) 1983-01-12
JPS5811625A (ja) 1983-01-22
EP0069228B1 (de) 1986-09-10
US4537749A (en) 1985-08-27
DE3125430A1 (de) 1983-01-20
EP0069228A3 (en) 1983-06-22

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